In the face of Tu Lao's request, the other party answered one by one, and the time of the morning passed like this, and in the afternoon, after the meeting continued, the proposal was transferred to Lieutenant Colonel Mirza.

"We have some new requirements for this aircraft." Lieutenant Colonel Mirza said: "First of all, the aircraft must have the ability to refuel in the air and have a blocking hook in the tail. ”

These requirements are exactly the same as those proposed by the Navy, refueling in the air can significantly increase the range of the aircraft, and the Mirage 3 purchased by the Pakistani side from France has this capability, and they absolutely do not think that the range is long, but they will not feel that it is enough.

This in-flight refueling is understandable, but what is the use of a blocking hook for this land-based fighter?

"Isn't the blocking hook used by the Navy's carrier-based aircraft? It is used to stop the fighter as soon as possible at the time of landing. Qin Feng asked on the side: "Our aircraft is currently designed according to land-based fighters, what is the use of this?" ”

Qin Feng really doesn't know, does Pakistan also want to build aircraft carriers? This is impossible, after all, Pakistan's national strength is not as good as India's, India's goal is to balance the Indian Ocean, and it has always pursued aircraft carriers, but Pakistan will not have such an idea as long as it can protect its territorial integrity, or, if it has an idea, it does not have the economic capacity.

There is no aircraft carrier, why do you want this?

"Ground-based fighters also have this demand." "If the plane's braking system is faulty and the runway is not long enough, you can use this system, and we have a similar system on our F-16 fighters, which is a bit simpler and easier than the Navy's system," Lieutenant Colonel Mirza said. ”

This is indeed rare and strange, just like in the current country, most pilots will feel incredible that they can launch missiles directly with radar, there is no optical sight ranging, there are no cumbersome steps, and they can fire directly with radar?

The development of the West is very fast, and now, most Western fighters, even land-based aircraft, use a similar landing arresting device, with a hook in the back, which can make an emergency landing when needed, and hook the blocking cable on the ground to quickly stop.

It can not only play a positive role in rescuing and ensuring the landing of malfunctioning planes in peacetime, but is also of great significance for improving the survival and combat capability of fighters under harsh conditions in wartime.

To put it more simply, this is also a kind of evolution of the West under the pressure of the Soviet Union, once there is a large-scale military conflict with the Soviet Union, then the firepower of the Soviets will destroy their airfields at any time, their fighters may take off, but there is nowhere to fall, what to do then?

As long as this hook exists, as long as there is a short runway, it can be landed, which is definitely more in line with the needs of actual combat than normal landing.

If you want to add this blocking hook, you have to modify the fuselage, and you have to hang it in a place that can withstand large overload forces!

Tu Lao was thinking about it, and the other party spoke again: "We hope that the maintenance of this aircraft will be simpler, and when the engine is installed, it should be easier, and the entire rear fuselage should not be removed before the engine can be disassembled." ”

Hearing Tu Lao's muttering in his heart, now, the rear fuselage has to be modified on a large scale!

The current J-7 has always had this problem, the engine is first installed on the rear fuselage, and then fastened together with the front fuselage, so that when repairing, the entire rear fuselage must be disassembled, a repair team, it will take one day to disassemble the engine, and it will take one day to install the engine, and it will take two days to complete the disassembly and assembly of the engine.

Look at the West again, they have seen the Mirage 2000 before, and they directly advanced it from behind, and under field conditions, it can be disassembled and assembled in fifteen minutes.

Such a requirement is understandable, they must change in pursuit of rapid repair under field conditions, but if they change in this way, then the rear fuselage also needs to undergo a major operation.

The nose was changed to air intake on both sides, which was obtained from Shenyang, and it was enough for you to modify and modify it, but the design of the fuselage behind it, you don't have any reference, and if you change it, it will be a waste of brains.

It's hard to get it!

"We also want to extend the life of the entire body."

Aircraft also has a life, when the aircraft is flying, all parts of the fuselage must be stressed, and under the condition of long-term stress, fatigue will occur, and there will be cracks, not to mention the cracks on the surface skin, and even the internal girders may have cracks, so after a certain number of hours of flight, the fuselage will not be suitable for flying again, which is the overall life of the aircraft.

When a fighter jet enters the prototype construction, there will be several, the first one is used for the first flight, and the second is used for static testing, which is a major step in the life of the aircraft.

Generally speaking, the life of Soviet fighters is not long, and the overall life of the fuselage is about 1,000 hours.

For a Soviet fighter, two thousand hours is already good, after all, the engine life of a fighter is only about one hundred and fifty hours, and one overhaul is only a total life of three hundred hours, so that during the life of the airframe, the engine has to be replaced several times, isn't this enough?

However, the West is different.

Western engines, very long-lived! Compared with the 200 hours of Soviet fighters, even if it is against the sky, the life of Western fighters is often thousands of hours.

In the eyes of the Soviets, fighters were built to fight wars, and they didn't have so much life, and if they didn't fly for life, they would be dried up, so it was better to simplify the manufacturing process and produce them in large quantities.

For the West, the time it takes to build an airplane is short, and it is definitely not cost-effective, and what people pay attention to is the overall consumption of the whole life.

In this way, if it is a wartime, the Soviet Union's plan is popular, and in peacetime, it is still a good deal for the West.

On the other hand, it is the problem of the industrial base, the high service life, which requires a higher industrial level, the excellent characteristics of the material itself, the accuracy of processing, etc., will affect the entire life.

As for the current F404, the full life has reached three thousand hours, what does this mean? The engine can still be used, but the plane is no longer working! So what to do, take the old engine, dismantle it and put it on a new plane?

Therefore, it is necessary to improve the life of the body!

Although the life of the body can be extended, it is better to directly increase the life of enough, I have only heard that the engine is not good first, and I have not heard of the body breaking first.